Qemu ошибка подключения к графической консоли

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• [SOLVED] KVM — Error connecting to graphical console (SpiceClientGtk)

1. KVM — Error connecting to graphical console (SpiceClientGtk)
   

   Hi All,

   I have a new install of Ubuntu Server 20.04.2 LTS setup and running KVM.

   Everything *seems* to be fine with the server.

   I have then installed ‘virt-manager’ on my Ubuntu 18.04 LTS Desktop machine, and successfully connected to the KVM Server.

   I have tried to create a new VM (Debian Stretch) from the Virtual Machine Manager (virt-manager), but each time I am getting the same issue which is that I cannot see the VM Console.

   The error I am getting is:

   Error connecting to graphical console:
   Error opening Spice console, SpiceClientGtk missing

   I have checked that ‘SpiceClientGtk’ is installed on the Ubuntu Server by entering:

   Code:

   sudo apt install gir1.2-spiceclientgtk-3.0 --dry-run

   which returns:

   Code:

   Reading package lists... Done
   Building dependency tree       
   Reading state information... Done
   gir1.2-spiceclientgtk-3.0 is already the newest version (0.37-2fakesync1).
   gir1.2-spiceclientgtk-3.0 set to manually installed.
   0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded

   so I believe that is correctly installed. For what it was worth, I also installed it on my Desktop, but that made no difference either.

   I also tried connecting using ‘virt-viewer’.

   I entered this on my desktop:

   Code:

   virt-viewer --connect qemu+ssh://username@172.25.25.3/system VMName

   I don’t have keys setup (yet) so I am expecting to get asked for the password, which I am (a number of times, but apparently that is expected). The ‘virt-viewer’ application opens, and sits with the message:

   Connected to graphic server

   The VM is definitely running (at least according to the host):

   Code:

   $ virsh list
   
    Id   Name         State
   ----------------------------------------
    1    VMName   running

   Any suggestions on what to try or do next?

   Thanks,

   Alan.

   Last edited by Alan5127; March 9th, 2021 at 11:56 AM.

   Reason: Tidy up formatting

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2. Re: KVM — Error connecting to graphical console (SpiceClientGtk)
   

   Setup ssh-keys already.

   On the client system:

   Code:

   ssh-keygen -t ed25519
   ssh-copy-id -i ~/.ssh/id_ed25519.pub userid@remote

   That’s it.

   Verify the keys are working:

   On the client machine, you must have virt-manager and spice-client-…… (really long package name) installed and your userid should be in the libvirtd group on the KVM server.
   There are other settings inside the VM that are needed, but I think the defaults are for SPICE to be used since 18.04. You can change that to VNC or VMVGA, if you like in the VM settings. On a non-desktop, SPICE isn’t exactly useful. Heck, on a non-desktop, just use ssh directly. That is much more efficient.
   Until today, I never tried to connect to a server using spice. It never made any sense to try.

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3. Re: KVM — Error connecting to graphical console (SpiceClientGtk)
   

   Hi TheFu,

   Adding the SSH keys fixed the problem.

   No idea why — I appreciate it is more convenient, but not sure why it works that way, and not by typing the password, but regardless, it is working now.T

   Thanks!

   Alan.

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